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5. Eliminate the Y in the Following System of Equations. What Is the Result When You Add the Two Equations? ) X+y=2 3x-4y=27 7x=35

Question

5. Eliminate the y in the following system of equations. What is the result when you add the two equations? ) x+y=2 3x-4y=27 7x=35 4x=29 x=-23 7x=29

Solution

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Carlinhos Profissional · Tutor por 6 anos

Resposta

To eliminate y in the given system of equations, we can multiply the first equation by 4 and the second equation by 1, then add the two equations together.Multiplying the first equation by 4, we get:4(x + y)4x + 4y = 8The second equation remains the same:3x - 4y = 27Now, we can add the two equations together:(4x + 4y) + (3x - 4y) = 8 + 274x + 3x = 357x = 35Therefore, the result when you add the two equations is 7x = 35.